myChart.showLoading();

$.get('data/asset/geo/HK.json', function (geoJson) {

    myChart.hideLoading();

    echarts.registerMap('HK', geoJson);

    myChart.setOption(option = {
        title : {
            text : '香港18区人口密度 （2011）',
            subtext: '人口密度数据来自Wikipedia',
            sublink: 'http://zh.wikipedia.org/wiki/%E9%A6%99%E6%B8%AF%E8%A1%8C%E6%94%BF%E5%8D%80%E5%8A%83#cite_note-12'
        },
        tooltip : {
            trigger: 'item',
            formatter: '{b}<br/>{c} (p / km2)'
        },
        toolbox: {
            show : true,
            orient : 'vertical',
            left: 'right',
            top: 'center',
            feature : {
                mark : {show: true},
                dataView : {show: true, readOnly: false},
                restore : {show: true},
                saveAsImage : {show: true}
            }
        },
        visualMap: {
            type: 'continuous',
            min: 800,
            max: 50000,
            text:['High','Low'],
            realtime: false,
            calculable : true,
            color: ['orangered','yellow','lightskyblue']
        },
        series : [
            {
                name: '香港18区人口密度',
                type: 'map',
                mapType: 'HK', // 自定义扩展图表类型
                itemStyle:{
                    normal:{label:{show:true}},
                    emphasis:{label:{show:true}}
                },
                data:[
                    {name: '中西区', value: 20057.34},
                    {name: '湾仔', value: 15477.48},
                    {name: '东区', value: 31686.1},
                    {name: '南区', value: 6992.6},
                    {name: '油尖旺', value: 44045.49},
                    {name: '深水埗', value: 40689.64},
                    {name: '九龙城', value: 37659.78},
                    {name: '黄大仙', value: 45180.97},
                    {name: '观塘', value: 55204.26},
                    {name: '葵青', value: 21900.9},
                    {name: '荃湾', value: 4918.26},
                    {name: '屯门', value: 5881.84},
                    {name: '元朗', value: 4178.01},
                    {name: '北区', value: 2227.92},
                    {name: '大埔', value: 2180.98},
                    {name: '沙田', value: 9172.94},
                    {name: '西贡', value: 3368},
                    {name: '离岛', value: 806.98}
                ],
                // 自定义名称映射
                nameMap: {
                    'Central and Western':'中西区',
                    'Eastern':'东区',
                    'Islands':'离岛',
                    'Kowloon City':'九龙城',
                    'Kwai Tsing':'葵青',
                    'Kwun Tong':'观塘',
                    'North':'北区',
                    'Sai Kung':'西贡',
                    'Sha Tin':'沙田',
                    'Sham Shui Po':'深水埗',
                    'Southern':'南区',
                    'Tai Po':'大埔',
                    'Tsuen Wan':'荃湾',
                    'Tuen Mun':'屯门',
                    'Wan Chai':'湾仔',
                    'Wong Tai Sin':'黄大仙',
                    'Yau Tsim Mong':'油尖旺',
                    'Yuen Long':'元朗'
                }
            }
        ]
    });
});